They will both report directly to president, HBO programming Michael Lombardo, who made the announcement.

Bloys (left), who has led HBO comedy since 2006, has overseen the development and production of series such as “Girls,” “Veep,” “Eastbound and Down” and “Entourage.” He originally came aboard HBO in 2004 as director, development, HBO Independent Productions.

Ellenberg, who joined the premium cable channel in 2011, previously served as senior vice president, HBO Entertainment. He has been in charge of the channel’s dramas, including “Game of Thrones,” “True Blood” and “Boardwalk Empire,” as well as the upcoming “True Detective” and “The Leftovers.”

“Both Casey and Michael already have proven track records and have been pivotal in developing one of the strongest series slates in HBO history,” Lombardo said in a statement. “They are recognized throughout the industry as two of the most talented entertainment executives and, equally important, valued within the company for their leadership and strategic vision.”